By Justin Sink - 03/21/13 03:21 PM EDT
"America is really looking for peace, but if somebody threatens peace, America is not a chicken," Peres told Fox News.
The Israeli leader said Obama's pledge Wednesday to do "what is necessary" to stop Iran from developing a nuclear weapon was precisely calculated, but with significant weight.
Peres added that "shooting is the last option," but said the United States was ready to use military force if necessary.
"Only if all of this [diplomacy] will not fly, then there must be another option," Peres said. "If there won't be another option, all the others don't exist."
On Wednesday, Obama said that American and Israel leaders "prefer to resolve this diplomatically."
"Iran’s leaders must understand, however, that they have to meet their international obligations," he continued. "And, meanwhile, the international community will continue to increase the pressure on the Iranian government. The United States will continue to consult closely with Israel on next steps. And I will repeat: All options are on the table."